What type of engine does the Cessna 172 typically have?

The Cessna 172 typically features a normally aspirated, four-stroke engine. This design is commonly used in general aviation due to its reliability and efficiency. A four-stroke engine operates on four distinct cycles: intake, compression, power, and exhaust, which allows for smooth and efficient power delivery.

The term "normally aspirated" indicates that the engine relies on atmospheric pressure for air intake, without the assistance of a turbocharger. This is particularly suited for operations at lower altitudes where the aircraft commonly operates. These engines are optimal for the flight profiles typically undertaken by Cessna 172s, such as training and recreational flying, where high performance at altitude is not a primary requirement.

The other engine types mentioned in the options do not reflect the standard configuration for this aircraft. Diesel engines and rotary engines are much less common in general aviation aircraft like the Cessna 172, and while turbocharged engines do exist, they are not standard on this model. Knowing these distinctions enhances an understanding of why the Cessna 172 is renowned for its straightforward operation and maintenance, making it a favored choice for flight training.